Data Communication

What is Data Communication?

• Sending and receiving information between two persons

• The process of transferring data using two or more computers

• Transferring money using ATM machine

____________ is a device used to receive information that was transmitted.

• Transmission Medium

• Sending Device

• Receiving Device

___________ is a device used to send a command to transmit data.

• Receiving Device

• Transmission Media

• Sending Device

___________ is the device that connects the sending device to the communication channel.

• Transmission Media

• Communication Device

• Receiving Device

Channel of communication can be:

• Wired and Wireless

• Wifi and Cable

• Microwave and Radio

Simplex means:

• Signals are sent at the same time.

• Signals are sent in both ways but not at the same time.

• Signals are sent in only one direction.

Full Duplex means:

• Signals are sent in one direction.

• Signals are sent simultaneously.

• Signals are sent in both direction but not at the same time.

Half Duplex means:

• Allows data to be transmitted in one direction only.

• Allows data to be transmitted in both direction but not at the same time

• Allows data to be transmitted in both directions simultaneously

Which of the following is an example of Half Duplex?

• Radio

• Telephone

• Walkie Talkie

• Fax machine

Which of the following is an example of Simplex Mode?

• Telephone

• Radio

• Walkie Talkie

• All of these